Grammar Giggle – Biscuitier

I’m all for a play on words in retail advertising. I smile or laugh when I “get it.” But I saw this one recently in my travels and had an issue with it. Why is there a comma after “biscuitier”? You can say “bigger and biscuitier” but would you really say “bigger and biscuitier and biscuit”? I think the comma between “bigger” and “biscuitier” is enough.